From ea2d06395b6de717a5e0c4b6e55f3047cae2131f Mon Sep 17 00:00:00 2001 From: "andrey@cozybit.com" Date: Tue, 19 May 2009 17:20:13 -0700 Subject: [PATCH] libertas: fix GSPI card event handling The GPSI interface driver does not re-enable the Card Event Interrupt, which causes problems after a card event (for example: link-loss) comes in. This can lead, for example, to the card failing to re-associate. This patch ensures that we re-enable the Card Event Interrupt when we handle card events. Signed-off-by: Andrey Yurovsky Acked-by: Dan Williams Signed-off-by: John W. Linville --- drivers/net/wireless/libertas/if_spi.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/net/wireless/libertas/if_spi.c b/drivers/net/wireless/libertas/if_spi.c index dccd01fd1f10..5fa55fe1f860 100644 --- a/drivers/net/wireless/libertas/if_spi.c +++ b/drivers/net/wireless/libertas/if_spi.c @@ -814,6 +814,13 @@ static void if_spi_e2h(struct if_spi_card *card) if (err) goto out; + /* re-enable the card event interrupt */ + spu_write_u16(card, IF_SPI_HOST_INT_STATUS_REG, + ~IF_SPI_HICU_CARD_EVENT); + + /* generate a card interrupt */ + spu_write_u16(card, IF_SPI_CARD_INT_CAUSE_REG, IF_SPI_CIC_HOST_EVENT); + spin_lock_irqsave(&priv->driver_lock, flags); lbs_queue_event(priv, cause & 0xff); spin_unlock_irqrestore(&priv->driver_lock, flags);